We're going to solve 4090 multiplied by 5238
4090 × 5238 = 5238 × (4090)
+ 5238 × 0 that results in 0
+ 5238 × 90 resulting in 471420
+ 5238 × 000 what gives us 0
+ 5238 × 4000 giving us 20952000

= 21423420
